Probably not! Since you mention it, the fluctuation of PageRank is very interesting. Up to a couple of weeks ago I had PageRank 7, and currently it's 6 (and I know other bloggers who have got lower ones recently as well).

What's the problem, Google? Even more content? More readers? More links to here? 🙂

I see in my logs that quite a few people come to my blog after searching for 'fat sex'. I suppose they are rather disappointed when they find a page in Swedish about when I went to a Mackmyra whisky-tasting event. We tested six ('sex' in Swedish) different whiskies from three types of vats ('fat' in Swedish). 🙂